ATI SKILLS- VITAL SIGNS Flashcards
INSPIRATION
an active process that involves the diaphragm moving down, external intercostal muscles contracting, and the chest cavity expanding to allow air to move into the lungs
expiration
a passive process that involves the diaphram moving up, external intercostal muscles relaxing, and the chest cavity returning to its normal resting state
what regulates breathing
respiratory center in the medulla of the brain and the level of co2 in the blood
what components are involved in the accurate assessment of respiration
rate, depth, and rhythm
what factors can alter a client’s respiratory rate
exercise, anxiety, fever, low hemoglobin can all increase
neurological injuries and meds can slow the respiratory rate
tachypnea
rr faster than 20/min
bradypnea
rr slower than 12/min
cheyne stokes
breathing cycles that increase in rate and depth and then decrease and are followed by a period of apnea
causes of cheyne stokes
heart failure
increased intracranial pressure
eol
biot’s respirations
period of slow and deep or rapid and shallow breathing followed by apnea
causes of biot’s respirations
cns abnormalities
kussmaul’s respirations
deep and gasping respirations
what causes kussmaul’s respirations
renal failure
septic shock
diabetic ketoacidosis
depth of breathing
aka tidal volume
amount of air that moves in and out of the lungs with each breath
what instrument determines precise tidal volume
spirometer
how can you estimate tidal volume
by observing the expansion and symmetry of chest wall movement during inspiration and expiration
the binaural assembly of a stethoscope includes what parts
ear tips (earpieces)
ear tubes (binaurals)
tubing
bell of the stethoscope
cup shaped
for low pitched sounds
diaphragm
flat/drum-like part
high pitched sounds
what does the strength of the pulse correlate with
the volume of blood being ejected against the arterial walls with each contraction of the heart
blood volume affect on pulse
decrease- weak and difficult to palpate
increase- bounding and easy to palpate
radial pulse
easiest to access
most frequently checked peripheral pulse
normal adult pulse rate ranges
60-100/min
factors affecting pulse
sex (higher in women)
age (higher in infants/children)
exercise
meds
decreased SaO2
blood loss
temp